Product Features and Description
- 【 Unique Super Capacitor Technology 】 Jstar X1 jump starter doesn’t use lithium battery but super capacitor, so it’s a super safe jump pack, no worries about heat and explosion. No need for regular charging when you use it, charge from your weak car battery, instantly start all the 12 volt vehicles like SUVs, RVs, pickups, motorcycles, snowmobiles, and even lawnmowers.
- 【 Always Ready To Start 】 Jstar X1 portable car jumper starter doesn’t need to pre-charge for hours, 3 mins fast charging, plug and play, really saves your time. In addition, this car battery jump starter can be used more than 100,000 times. It’s more convenient and has a longer lifespan than other ordinary jump starters.
- 【 Working In Freezing Winter 】 Jstar X1 jumper box for car battery can save you from stalling in freezing weather, even in -40℉. This battery jumper’s operation temp is -40℉-158℉, so whether it’s a snowstorm or a scorching summer day, you always easily start your dead car with this booster pack jump starter.
- 【 Extremely Safe Car Starter 】 Jstar X1 jump box is a supercapacitor jump starter, not a built-in battery, and is physically activated to keep users away from the risk of sparks or explosions. What’s more, car jumper comes with the most advanced smart clamp with 8 kinds of multi-protection technologies, easy to use and absolutely safe.
- 【 Lifetime Free After-sales Service 】 You can get not only a car battery charger jump starter, but also a lifetime professional 24-hour online after-sales team for any issues. UTRAI offers a free return/replacement policy to protect all customers rights. Please free to contact us if you have any questions.
What makes UTRAI unique? UTRAI is a self-owned brand born in 2014, who focuses on the auto parts industry for many years. We designed a lot of auto products and sell them on Amazon. We are committed to providing the best solutions for any auto problem on the road. Whether it’s outdoor travel or a roadside emergency, you can trust us and get all you need from UTRAI. Always Ready For Your Exploration!
- Battery Cell Composition:Lithium
- Voltage:12 Volts
- Item Dimensions LxWxH:8.5 x 4.5 x 3 inches
- Vehicle Service Type:Passenger Car, Motorcycle, Snowmobile
- Battery Capacity:12 Volts
- Amperage:500 Amps
- Model:Jstar X1
- Item Weight:3.12 pounds
- Product Dimensions:8.5 x 4.5 x 3 inches
- Item model number:Jstar X1
- Manufacturer Part Number:Jstar X1
- Customer Reviews:4.5 out of 5 stars 567 ratings 4.5 out of 5 stars
- Best Sellers Rank:#158,190 in Automotive (See Top 100 in Automotive) #363 in Jump Starters
- Date First Available:August 3, 2022
Regrettably, when I attempted to use the jumper last week, it did not work. The ‘On/Off plastic switch snapped at first press and disappeared inside the equipment. Still stuck inside.what a disappointment!
Frank Riedel –
absolute rubbish — charged in the morning, wanting to use afternoon — completely discharged
based on “positive reviews” i bought the unit. unpacked, charged until full and wanted to use. from 100% fully charged went down to 31% when checking and 15min later was completely empty — brand new, untouched and never used!
Kobus Malan –
Takes 30 minutes to charge from empty
John Duque –
The product doesn’t work
The first time I tried to work with this product on my car’s battery and following all the product’s instructions and it doesn’t work as it should.
Wendell j Richardson –
The service was very good. Thank you
Emergency use for my transportation
Alba G. –
Efectivo si funciona
Cumple con el tiempo de carga … Arranca el vehículo con mucha facilidad. Satisfacción total
Does not work!
Expensive, looked nice, but it could not start my honda civic hybrid, which is only 1.3L gasoline engine. It could be QA/QC or a lemon, but I would never know. Returned. At least Amazon return was easy and helpful.
Easy to use
The jumper starter is relatively light and compact. It has a very large LCD screen which is bright and easy to read. It charges fast, I connect it to my almost dead car battery and it takes less than 5 mins to be 100%. So simple to use. Problem solved. I would recommend it to my friends.
Reliable and good idea.
I was just testing of 5V input is good, you need this only if your battery is completely dead. Typically (99%) we will have discharged battery condition happens if we forgot turn off lights of car or missed to close the door/trunk properly… Or old battery that is not able to start the car. In these these jump start works like charm in that case. the good thing is this is supercapacitor design and battery-free solution. Just leave in our car like jump start cable and never worry about charging. If you run in to dead battery situation, you have the savior. I got one for my CRV.
Works, but build could be better
The device work fine however it is poorly built. On first use the power button fell inside the device on is there. The button felt very inferior. Equally the positive clamp fell apart. I was able to put it back together. A useful device but over priced for its quality.